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Define the terms of pole and centre of ...

Define the terms of pole and centre of curvature of a spherical mirror.

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The centre of the reflecting surface of the aperture of the mirror is called the pole of the spherical mirror.
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SUBHASH PUBLICATION-RAY OPTICS AND OPTICAL INSTRUMENTS-TWO MARKS QUESTIONS WITH ANSWERS
  1. State the laws of reflection of light.

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  2. Define the terms of pole and centre of curvature of a spherical mirro...

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  3. Define the terms of pole and centre of curvature of a spherical mirro...

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  4. Define the terms of radius of curvature.

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  5. Define the terms of principal axis of a mirror.

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  6. Give the Cartesian sign convention for measuring distances in spherica...

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  7. Identify the terms of paraxial rays .

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  8. Identify the terms of marginal rays of light.

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  9. Define the terms of principal focus F.

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  10. Define the terms of focal plane of the mirror.

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  11. Draw ray diagrams to show rays of light converging or appear diverging...

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  12. Define focal length of a mirror and hence relate focal length and radi...

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  13. Why do thick lenses show more chromatic aberration than thin lenses?

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  14. Explain why convex lenses converge incident beam of light whereas conc...

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  15. Draw a neat labelled diagram to show (i) primary rainbow and (ii) seco...

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  16. Explain why the colour of the sky is blue (Cyan).

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  17. Define angular magnification.

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  18. Draw a neat labelled diagram of Cassegrain reflecting telescope.

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  19. Can plane and convex mirrors produce real images? Give an explanation ...

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  20. Answer the following questions: (b) A virtual image, we always say, ...

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